Home / 1,259,165.40-1,889,305.80-659,984.10

Finding the Fourth Proportional to 1,259,165.40, 1,889,305.80 and 659,984.10

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Solution

The fourth proportional to 1,259,165.40, 1,889,305.80 and 659,984.10 is: 990,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,165.40 : 1,889,305.80 = 659,984.10 : x
  2. Step 2: Convert to fraction form
    1,259,165.40/1,889,305.80 = 659,984.10/x
  3. Step 3: Cross multiply
    1,259,165.40x = 1,889,305.80 × 659,984.10
  4. Step 4: Simplify right side
    1,259,165.40x = 1,246,911,788,037.78
  5. Step 5: Solve for x
    x = 1,246,911,788,037.78/1,259,165.40
  6. Step 6: Final answer
    x = 990,268.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.